Power plant boiler cleaning wall temperature on-line monitoring device

Abstract

The utility model discloses a power plant boiler cleaning wall temperature on-line monitoring device which comprises a boiler and a temperature measuring instrument which is arranged on the boiler and can conduct on-line monitoring, the surface of the temperature measuring instrument is symmetrically sleeved with protective sleeve plates for protecting the temperature measuring instrument, and the temperature measuring instrument is further provided with a buffer assembly. The buffering assembly is provided with a connecting plate connected with the protective sleeve plate and comprises a square groove formed in the temperature measuring instrument, a circular groove is formed in the square groove, a first spring is arranged in the circular groove, a guide rod arranged in the circular groove in a sleeving mode is arranged at one end of the first spring, a fixing rod is arranged at one end of the guide rod, and the two ends of the fixing rod are each sleeved with a sliding block. When the temperature measuring instrument falls off from the hand of an operator and collides with the outside, the temperature measuring instrument is buffered by the buffer assembly through the protective sleeve plate, the acting force acting on the temperature measuring instrument is reduced, the temperature measuring instrument is protected, and the accuracy of the temperature measuring instrument for measuring the wall temperature of the boiler is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power plant boilers, in particular to an on-line monitoring device for the wall temperature during the cleaning of power plant boilers. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes the chemical energy in fuel and electric energy. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of heat energy. The original meaning of "pot" refers to a water container heated on fire, and "furnace" refers to a place for burning fuel. A boiler includes two main parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electric energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of application in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

[0003] For a boiler used for thermal power generation in a power plant, when cleaning the boiler, a temperature measuring device is used to perform on-line monitoring of the wall temperature of the boiler. The internal structure of the existing device for measuring the wall temperature of the boiler is precise, while its external structure is simple, and the external protection effect of the temperature measuring device is poor. When the operator fails to hold the temperature measuring device firmly and it drops from the hand and collides with the outside, the temperature measuring device is easily damaged, affecting the accuracy of measuring the wall temperature of the boiler. In view of this, an on-line monitoring device for the wall temperature during the cleaning of power plant boilers is proposed. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an on-line monitoring device for the wall temperature during the cleaning of power plant boilers, so that the temperature measuring instrument can be protected and the accuracy of measuring the wall temperature of the boiler by the temperature measuring instrument can be improved.

[0005] To solve the above technical problems, the utility model provides the following technical solution: An on-line monitoring device for the wall temperature during the cleaning of power plant boilers includes a boiler and a temperature measuring instrument arranged on the boiler for on-line monitoring. A protective sleeve plate for protecting the temperature measuring instrument is symmetrically sleeved on the surface of the temperature measuring instrument. A buffer assembly is also arranged on the temperature measuring instrument, and a connecting plate connected to the protective sleeve plate is arranged on the buffer assembly;

[0006] The temperature measuring instrument is protected by the buffer of the buffer assembly through the protective sleeve plate, and the acting force on the temperature measuring instrument is reduced.

[0007] As a preferred technical solution of the present utility model, the buffer assembly includes a square groove formed in the temperature measuring instrument, a circular groove is formed in the square groove, a first spring is arranged in the circular groove, one end of the first spring is provided with a guiding rod sleeved with the circular groove, one end of the guiding rod is provided with a fixing rod, both ends of the fixing rod are sleeved with sliders, and both ends of the fixing rod are further sleeved with second springs that push the sliders to abut against the square groove, and one side of the fixing rod is connected to the protective sleeve plate through a connecting plate.

[0008] As a preferred technical solution of the present utility model, side baffles for protecting the temperature measuring instrument are arranged on one side of each of the two protective sleeve plates.

[0009] As a preferred technical solution of the present utility model, multiple groups of the buffer assemblies are arranged at equal intervals on the surface of the temperature measuring instrument.

[0010] As a preferred technical solution of the present utility model, the inner wall surface of the circular groove abuts against the outer wall surface of the guiding rod.

[0011] As a preferred technical solution of the present utility model, a through hole sleeved with the fixing rod is formed inside the slider, and the inner wall surface of the through hole abuts against the outer wall surface of the fixing rod.

[0012] As a preferred technical solution of the present utility model, the length of the fixing rod is adapted to the length of the square groove, and both ends of the fixing rod abut against both sides of the square groove.

[0013] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0014] 1. In the present utility model, when the temperature measuring instrument falls off from the operator's hand and collides with the outside world, the temperature measuring instrument is buffered by the buffer assembly through the protective sleeve plate, reducing the acting force on the temperature measuring instrument, protecting the temperature measuring instrument, and improving the accuracy of the temperature measuring instrument for measuring the wall temperature of the boiler.

[0015] 2. In the present utility model, through the arranged through hole, the inner wall surface of the through hole abuts against the outer wall surface of the fixing rod, enabling the slider to be sleeved with the fixing rod through the through hole, so that the slider can better push the second spring to move left and right on the surface of the fixing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the temperature measuring instrument of the present utility model;

[0018] Figure 3 is the present utility model Figure 2 magnified schematic diagram of the structure at A;

[0019] Figure 4 Schematic diagram of the structure of the protective cover plate and the side baffle of the present utility model;

[0020] Figure 5 For the present utility model Figure 4 Enlarged structure schematic diagram at position B;

[0021] Figure 6 Schematic diagram of the structure of the temperature measuring instrument of the present utility model.

[0022] Wherein: 1. Boiler; 2. Temperature measuring instrument; 3. Protective cover plate; 4. Buffer assembly; 41. Square groove; 42. Circular groove; 43. First spring; 44. Guide rod; 45. Fixed rod; 46. Slide block; 47. Second spring; 5. Connecting plate; 6. Side baffle; 7. Through hole. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0024] Embodiment:

[0025] As Figures 1-6 shown, the present utility model provides an on-line monitoring device for the wall temperature of a power plant boiler cleaning, including a boiler 1 and a temperature measuring instrument 2 disposed on the boiler 1 for on-line monitoring. The surface of the temperature measuring instrument 2 is symmetrically sleeved with a protective cover plate 3 for protecting the temperature measuring instrument 2. A buffer assembly 4 is further disposed on the temperature measuring instrument 2, and a connecting plate 5 connected to the protective cover plate 3 is disposed on the buffer assembly 4. When the temperature measuring instrument 2 falls off from the operator's hand and collides with the outside, the temperature measuring instrument 2 is buffered by the buffer assembly 4 through the protective cover plate 3, reducing the acting force on the temperature measuring instrument 2 and protecting the temperature measuring instrument 2, improving the accuracy of the temperature measuring instrument 2 for measuring the wall temperature of the boiler 1.

[0026] The buffer assembly 4 includes a square groove 41 formed in the temperature measuring instrument 2. A circular groove 42 is formed in the square groove 41. A first spring 43 is arranged in the circular groove 42. One end of the first spring 43 is provided with a guiding rod 44 sleeved with the circular groove 42. One end of the guiding rod 44 is provided with a fixing rod 45. Sliders 46 are sleeved at both ends of the fixing rod 45. A second spring 47 for pushing the slider 46 to abut against the square groove 41 is also sleeved at both ends of the fixing rod 45. One side of the fixing rod 45 is connected to the protective cover plate 3 through a connecting plate 5. When the temperature measuring instrument 2 drops, according to the collision direction of the temperature measuring instrument 2, the protective cover plate 3 pushes the fixing rod 45 in the slider 46 on one side of the temperature measuring instrument 2 in the direction close to the temperature measuring instrument 2 through the connecting plate 5. Under the action of the fixing rod 45, the guiding rod 44 squeezes the first spring 43 and contracts and deforms towards the inside of the circular groove 42. The slider 46 moves on the surface of the fixing rod 45 in the direction of the guiding rod 44, squeezing the second spring 47 and causing the second spring 47 to be deformed by the force. By using the resilience of the first spring 43 and the second spring 47, a reverse acting force is generated to buffer the force acting on the temperature measuring instrument 2 and reduce the force acting on the temperature measuring instrument 2, thereby enhancing the protective effect on the temperature measuring instrument 2.

[0027] On one side of the two groups of protective cover plates 3, side baffles 6 for protecting the temperature measuring instrument 2 are arranged, which can increase the protection range on the side of the temperature measuring instrument 2 and further improve the protection strength of the temperature measuring instrument 2. Multiple groups of buffer assemblies 4 are arranged at equal intervals on the surface of the temperature measuring instrument 2, so that when the temperature measuring instrument 2 collides with the outside world, the force acting on the temperature measuring instrument 2 can be buffered in all directions, further enhancing the protection strength of the temperature measuring instrument 2.

[0028] The inner wall surface of the circular groove 42 abuts against the outer wall surface of the guiding rod 44, enabling the guiding rod 44 to be better limited by the circular groove 42 and improving the stability of the guiding rod 44 moving in the circular groove 42. A through hole 7 sleeved with the fixing rod 45 is formed inside the slider 46. The inner wall surface of the through hole 7 abuts against the outer wall surface of the fixing rod 45, enabling the slider 46 to be sleeved with the fixing rod 45 through the through hole 7, so that the slider 46 can better push the second spring 47 to move left and right on the surface of the fixing rod 45. The length of the fixing rod 45 is adapted to the length of the square groove 41. Both ends of the fixing rod 45 abut against both sides of the square groove 41, enabling the slider 46 to be limited on the fixing rod 45 and preventing the slider 46 from separating from the fixing rod 45 at the gap between the fixing rod 45 and the square groove 41, improving the stability of use.

[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0030] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. The online monitoring device for the cleaning wall temperature of power plant boilers is characterized by: The invention comprises a boiler (1) and a temperature measuring instrument (2) arranged on the boiler (1) and capable of online monitoring, wherein a protective sleeve (3) is symmetrically sleeved on the surface of the temperature measuring instrument (2) for protecting the temperature measuring instrument (2), a buffer component (4) is also arranged on the temperature measuring instrument (2), and a connecting plate (5) connected to the protective sleeve (3) is arranged on the buffer component (4); The temperature measuring instrument (2) is protected by the protective sleeve (3) and the buffering of the buffer assembly (4), thereby reducing the force acting on the temperature measuring instrument (2).

2. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 1 is characterized by: The buffer assembly (4) comprises a square groove (41) provided on the temperature measuring instrument (2), a circular groove (42) provided in the square groove (41), a spring (43) provided in the circular groove (42), a guide rod (44) sleeved with the circular groove (42) provided at one end of the spring (43), a fixing rod (45) provided at one end of the guide rod (44), a slider (46) sleeved at both ends of the fixing rod (45), a spring (47) for pushing the slider (46) to contact the square groove (41) also sleeved at both ends of the fixing rod (45), and one side of the fixing rod (45) is connected to the protective sleeve plate (3) via a connecting plate (5).

3. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 1 is characterized by: One side of the two groups of protective sleeve plates (3) is provided with a side baffle plate (6) for protecting the temperature measuring instrument (2).

4. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 1 is characterized by: The buffer components (4) are arranged in multiple groups at equal intervals on the surface of the temperature measuring instrument (2).

5. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 2 is characterized by: The inner wall surface of the circular groove (42) abuts against the outer wall surface of the guide rod (44).

6. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 2 is characterized by: The slider (46) is provided with a through hole (7) sleeved with the fixing rod (45), and the inner wall surface of the through hole (7) is in conflict with the outer wall surface of the fixing rod (45).

7. The on-line monitoring device for cleaning wall temperature of a power plant boiler according to claim 2 is characterized by: The length of the fixing rod (45) matches the length of the square slot (41), and the two ends of the fixing rod (45) abut against the two sides of the square slot (41).

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